They are offered guaranteed immunity in return. As a business, this kind of (my qualification to same: short term, narrow scope, and coerced) risk reduction ca

They are offered guaranteed immunity in return. As a business, this kind of (my qualification to same: short term, narrow scope, and coerced) risk reduction can be hard to pass up. As a publicly traded business, you might even be sued by your shareholders for passing it up. P.S. As others have pointed out, where they are also large scale content owners, it may reflect overlapping interests rather than coercion.